Common Basilisk

The common basilisk is a Central American lizard famous for its ability to sprint across water. It lives along rivers and streams in tropical forests.

Interesting facts

  • Flaps of skin on its toes spread out to increase surface area when running on water.
  • Each footstep creates a pocket of air that helps keep it from sinking.
  • Young basilisks can run further on water than adults because they are lighter.
  • Males have tall crests on their heads, backs and tails.
  • When it slows down, it sinks and swims instead.
  • It can stay underwater for up to about half an hour.

Behaviour

Basilisks bask on branches over water and drop in to escape predators. They are active by day.

Breeding and young

Females lay several clutches a year of about 12–18 eggs in shallow holes.

Threats and conservation

The species is common.

Where to see it

  • Tortuguero National Park, Costa Rica
  • Corcovado and Manuel Antonio national parks, Costa Rica
  • Cahuita National Park, Costa Rica
  • Panama Canal area

Status source: IUCN Red List. Profile last reviewed September 2026.

Plan a trip

Where to see the common basilisk